Vatrogasac i policajka razgovarali su ispred zgrade nakon požara.

These are gendered nouns for professions:

• vatrogasac = firefighter (masculine form)
• policajka = policewoman / female police officer (feminine form)

The masculine counterpart of policajka is policajac.

So this sentence specifically describes a male firefighter and a female police officer.

In Croatian past tense, the main part of the verb agrees with the subject in number and, in the plural, often in gender.

Here the subject is:

• vatrogasac = masculine singular
• policajka = feminine singular

Together, they form a mixed-gender plural group, and Croatian normally uses the masculine plural form for mixed groups. That is why you get:

• razgovarali su = they were talking / talked

If the group were all female, you would use razgovarale su.

This is the Croatian past tense (often called the perfect).

It is formed with:

• the l-participle of the main verb
• plus the present-tense auxiliary biti (to be)

For razgovarati (to talk / converse), the masculine plural past form is:

• razgovarali

Then you add the auxiliary:

• su = they have / they were in this tense construction

So:

• razgovarali su = they talked / they were talking

Croatian often uses this one past tense where English might choose either talked or were talking, depending on context.

Both word orders can appear, but razgovarali su is very natural here.

The auxiliary su is a clitic, which means it tends to appear in the second position of the clause, not necessarily as the second word, but after the first phrase or unit.

In this sentence, the first phrase is:

• Vatrogasac i policajka

So the clitic su comes after that phrase:

• Vatrogasac i policajka razgovarali su...

Croatian word order is flexible, and you may also hear:

• Vatrogasac i policajka su razgovarali...

But razgovarali su is completely standard and common.

The preposition ispred means in front of and it requires the genitive case.

So:

• zgrada = building (nominative singular)
• zgrade = of the building / building after a genitive-taking preposition

That is why Croatian says:

• ispred zgrade = in front of the building

Many Croatian prepositions always require a specific case, and ispred is one of the ones that takes the genitive.

Because nakon (after) also requires the genitive case.

So:

• požar = fire (nominative singular)
• požara = of the fire / after the fire (genitive singular)

That gives:

• nakon požara = after the fire

So both ispred and nakon in this sentence are followed by the genitive.

No. Croatian does not have articles like English a/an and the.

So words like:

• vatrogasac
• policajka
• zgrade
• požara

do not have a separate article.

Whether English uses a or the depends on context when translating. In this sentence, English naturally uses:

• The firefighter and the policewoman were talking in front of the building after the fire.

But Croatian expresses that without articles.

Not exactly.

• razgovarati = to have a conversation, to talk with someone
• govoriti = to speak, to say, or to be able to speak a language
• pričati = to talk / tell stories / chat, often a bit more informal depending on context

So razgovarati emphasizes a conversation between people. In this sentence, that fits well because the firefighter and policewoman are talking with each other.

Yes. Croatian word order is more flexible than English, although some versions sound more natural than others depending on emphasis.

For example, these are possible:

• Vatrogasac i policajka razgovarali su ispred zgrade nakon požara.
• Nakon požara vatrogasac i policajka razgovarali su ispred zgrade.
• Ispred zgrade vatrogasac i policajka razgovarali su nakon požara.

The basic meaning stays the same, but the first part of the sentence often gets extra emphasis.

English is much less flexible here.

Yes. That is also correct.

Compare:

• Vatrogasac i policajka razgovarali su...
• Vatrogasac i policajka su razgovarali...

Both are acceptable. The difference is mostly one of rhythm, style, and information structure, not basic grammar.

You will see both patterns in Croatian.

Because the sentence refers to:

• one building
• one fire

In Croatian, the noun changes form not only for singular/plural, but also for case.

So:

• zgrada → zgrade = singular genitive
• požar → požara = singular genitive

These are not plural forms here. They are singular nouns in the genitive case.

That is a very common thing for English speakers to notice, because forms ending in -e or -a may look like plurals at first, but in Croatian they often are not.

In this sentence, the most natural interpretation is that the firefighter and the policewoman were talking with each other.

Croatian often does not need subject pronouns like they, because the verb form already shows number, and the nouns themselves are stated explicitly.

Also, razgovarati usually suggests a conversation, so when two people are named together as the subject, it strongly implies they were conversing with each other unless context says otherwise.

Yes. požar is the normal word for a fire, especially an accidental or destructive one, such as a building fire.

So:

• nakon požara = after the fire

If you were talking about fire as an element in a more general sense, Croatian can use other wording depending on context, but for an event like this, požar is exactly the right word.